html {
    font-size: 10px;
}
li {
    list-style: none;
}
html, body, #contain {
    height: 100vh;
    margin: 0;
}
body {
    margin: 0;
    color: #555;
    font-family: 'Helvetica Neue',Helvetica,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',Arial,sans-serif;
    background-color: #f7fafc;
}
#contain{
    width: 100%;
    text-align: center;
    padding-top: 92px;
    box-sizing: border-box;
    background-image: url("../img/bg.png");
    background-size: cover;
}
#contain h1{
    color: #0f88eb;
    font-size: 70px;
    font-weight: 500;
    margin: 0;
}
#contain h2{
    font-size: 18px;
    line-height: 1;
    font-weight: 400;
    margin: 30px 0 20px 0;
}
#contain .but{
    font-size: 18px;
    margin-bottom: 25px;
    box-sizing: border-box;
}
.btu{
    margin-right: 20px;
    color: #555;
    opacity: 0.7;
    text-decoration: none;
    font-weight: 500;
}
.but a{
    color: #555;
    opacity: 0.7;
    text-decoration: none;
    font-weight: 500;
}
.but .router-link-active {
    opacity: 1;
    color: #0f88eb;
    border-bottom: 2px solid;
    padding-bottom: 5px;
}
